package risoe.syslab.fhnew.hw.enocean;

/*
 * Copyright (c) 2012-2014, Technical University of Denmark (DTU)
 * All rights reserved.
 * 
 * The Flexhouse 2.0 platform ("this software") is licensed under the
 * BSD 3-clause license.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   - Neither the name of DTU nor the names of its contributors may be used to
 *     endorse or promote products derived from this software without specific
 *     prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE TECHNICAL UNIVERSITY OF DENMARK BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

import risoe.syslab.model.CompositeMeasurement;
import risoe.syslab.model.Quality;
import risoe.syslab.model.Source;
import risoe.syslab.model.Validity;

public class PushButtonMessage extends EnoceanRRTRPSMessage {

  private boolean secondAction;
  private int rockerID1;
  private int rockerID2;
  private boolean upDown1;
  private boolean upDown2;
  // TODO: private boolean energyBowPressed;
  private int numButtons;
  
  public PushButtonMessage(char[] msgBuf) {
    super(msgBuf);
    // TODO: energyBowPressed=((messageData[3] & 0x10)!=0);
    if (n_message) {
      rockerID1=((messageData[3] & 0xc0)>>6); // 0xc0 = 84..,...
      rockerID2=((messageData[3] & 0x0c)>>2); // 0x0c = ,...84..
      upDown1=((messageData[3] & 0x20)!=0);
      upDown2=((messageData[3] & 0x02)!=0);
      channel = rockerID1 + 1;
      if ( rockerID2 != 0 ) System.out.println("Warning: rockerID2 == " + rockerID2 );
      //System.out.println( "n-msg: " + getStringAddress() + " " + channel + " : " + rockerID1 + " : " + rockerID2 + " : " + upDown1 + " : " + upDown2 + " : " + String.format("%x", (int) messageData[3] ) );
      secondAction=((messageData[3] & 0x01)!=0);
      numButtons=(secondAction?2:1);
    }
    else { //u-message
      numButtons=((messageData[3] & 0xe0)>>5); // 0xe0 = 842.,...
      if (numButtons>0)
        numButtons++;
      //System.out.println( "u-msg: " + numButtons + " " + String.format("%x", (int) messageData[3] ) );
    }
  }

  public int getNumberOfButtonsPressed() {
    if (n_message) {
      return (secondAction?2:1);
    }
    else {
      return numButtons;
    }
  }

  public Boolean getState(int channel) {
    if ( getNumberOfButtonsPressed() == 0 ) return null;
    if ( getNumberOfButtonsPressed() == 1 ) {
      return ! upDown1;
    } else { 
      System.out.println("WARNING: More than one button pressed!!");
      return ! upDown1 || ! upDown2;
    }
  }

/*  public int getChannelNumber() {
  }

  public float getTempSetpoint() {
    return ((float)messageData[2])/255;
  }

  public float getTemperature() {
    float d=(float)messageData[1];
    return (255-d)*(40/255);
  }*/

  public boolean isLearnButtonPressed() {
    return ((messageData[0] & 0x08)==0);
  }

  public String toString() {
    StringBuffer rv=new StringBuffer();
    rv.append(this.getClass().getName());
    rv.append("[");
    rv.append(getStringAddress());
    rv.append(";");
    switch(numButtons) {
      case 0:
        rv.append("All buttons released");
        break;
      case 1:
        rv.append("Button "+rockerID1+" pressed "+((upDown1)?"UP":"DOWN"));
        break;
      case 2:
        rv.append("Button "+rockerID1+" pressed "+((upDown1)?"UP,":"DOWN,"));
        rv.append("Button "+rockerID2+" pressed "+((upDown2)?"UP":"DOWN"));
        break;
    }
    rv.append("]");
    return rv.toString();
  }

  public CompositeMeasurement getValue(int channel) {
    Boolean bp=getState(channel);
    double rv=Double.NaN;
    if (bp!=null)
      rv=(bp==true)?1:0;
    return new CompositeMeasurement(rv, Quality.OK, Validity.GOOD, Source.PROCESS);
  }
}
